[Bug sanitizer/79168] [7 Regression] libtsan fails to link when cross compiling GCC tip for Aarch64 target

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79168

--- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Created attachment 40564
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=40564&action=edit
gcc7-pr79168.patch

Does the attached untested patch help?  All I've noticed is that on some files
the 2nd and 3rd line from compiler-rt original has been removed during the
merge when it shouldn't, and in case ot tsan_rtl_aarch64.S it ate the .section
.bss
directive.